Separate out logic to handle different category/group of context menu items from RVContextMenu class

chrome/browser/guestview/webview/menu_context_guest.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/guestview/webview/menu_context_guest.h"
+
+MenuContextGuest::MenuContextGuest(content::RenderFrameHost* render_frame_host,

[Fady Samuel, 2014/02/25 00:33:53]

Can we call this a WebViewMenuContext?

[lazyboy, 2014/02/25 01:29:08]

Done.

+                                   const content::ContextMenuParams& params)
+    : MenuContext(render_frame_host, params) {
+}
+
+MenuContextGuest::~MenuContextGuest() {
+}
+
+bool MenuContextGuest::SupportsGroup(int group) {
+  switch (group) {
+    case ITEM_GROUP_PAGE:
+    case ITEM_GROUP_FRAME:
+    case ITEM_GROUP_LINK:
+    case ITEM_GROUP_SEARCH_PROVIDER:
+    case ITEM_GROUP_PRINT:
+    case ITEM_GROUP_ALL_EXTENSION:
+    case ITEM_GROUP_CURRENT_EXTENSION:
+    case ITEM_GROUP_PRINT_PREVIEW:
+      return false;
+    default:
+      return MenuContext::SupportsGroup(group);
+  }
+}